Lanus moved clear at the top with a goalless draw at Racing Club as River Plate were beaten by San Lorenzo, while Tigre moved to within three points of the summit.
Ghana coach Kwesi Appiah has left out Emmanuel Agyemang Badu and Mubarak Wakaso from his attacking-minded starting line-up to face Lesotho in Maseru while Kwadwo Asamoah and Christian Atsu return to the starting team.
With four months to end the second round qualifying for the 2014 FIFA World Cup, Ghana's penultimate clash against Lesotho on Sunday is the most crucial for the two-time World Cup finalist, the Black Stars.
Zambia coach Herve Renard says he wants Lesotho to defeat Ghana in their 2014 World Cup qualifier on Sunday to enhance his side's chances of reaching the final phase.